By Space Possessed brings together Clarke's essays on travel to the planets and beyond in a form where they can be read individually or as a continuing narrative. It describes the history of an enthusiasm that took a Somerset farm boy to international fame, starting with the delightful, self-deprecating humour of the early days of British Interplanetary Society and proceeding to deeper concerns when at last the early daydreams, mocked by so many, began to come radiantly true. Along the way there are delights of Clarke's prediction of the Moon landing, the lecture which prompted Bernard Shaw to join the British Interplanetary Society and the birthpangs of 2001: A Space Odyssey.

Humanity's future lies in space. These ever-topical essays, covering crucial years of interplanetary speculation and exploration show that one man, Arthur C. Clarke, has always been capable of foreseeing possibilities and probabilities, and opening up magnificent vistas to those willing to look with unblinkered eyes and minds. This is a testament to his vision.